1. Department of Polymer Materials Physics; “Petru Poni” Institute of Macromolecular Chemistry; 700487 Iasi Romania
2. Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; 011061 Bucharest Romania
3. Department of Polycondensation and Thermostable Polymers; “Petru Poni” Institute of Macromolecular Chemistry; 700487 Iasi Romania